Fluorescence Study on Miscibility in Poly(N-vinylcarbazole)/Poly(oxyethylene) Blends

被引：0
|
作者：
Fumihiko Ishizaki
Shinjiro Machida
Kazuyuki Horie
机构：
[1] Graduate School of Engineering,Department of Chemistry and Biotechnology
[2] The University of Tokyo,undefined
来源：
Polymer Journal | 2000年 / 32卷
关键词：
Poly(; -vinylcarbazole); Poly(oxyethylene); Blends; Partial Overlap Excimer; Full Overlap Excimer; Miscibility; Energy Migration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Some miscibility between poly(N-vinylcarbazole) (PVCz) and poly(oxyethylene) (PEO) has been found for the first time by means of the two kinds of excimer emission of 8.0–100 wt% PVCz in the PVCz/PEO blends. Interchain energy migration to a full-overlap excimer site in the blends is suggested on the basis of time-resolved fluorescence spectra. The emission ratio between partial-overlap and full-overlap excimers shows PVCz concentration dependence similar to that of film transparency, reflecting chain aggregation in PVCz/PEO blends. Schematic diagrams of microscopic phase-separation structure of the blends for various PVCz contents are also proposed.
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页码：62 / 66
页数：4
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